Table 3 Comparison of Cu(II) adsorption capacities of various carbonaceous adsorbents
From: Carbonized lignosulfonate-based porous nanocomposites for adsorption of environmental contaminants
Adsorbent | Max. Adsorption Capacity (mg/g) | Equilibrium Time | Adsorbent Dosage (mg) | Initial Cu(II) Conc. (M) | Cu(II) Volume (mL) | Ref. |
|---|---|---|---|---|---|---|
Oxidized activated carbon | 23 | 3 h | 800 | 3.9 × 10−4 | 800 | [51] |
Graphene aerogel | 19 | 15 min. | 60 | 1.3 × 10−3 | 100 | [52] |
Sodium alginate/GO aerogel | 98 | 3 h | – | 7.9 × 10− 3 | – | [53] |
Calcium alginate/GO aerogel | 98 | 40 min. | 50 | 1.5 × 10−3 | 50 | [54] |
GO/chitosan hydrogel | 63 | 10 h | 12.5 | 1.5 × 10−3 | 100 | [55] |
Graphene/acid-treated MWCNT aerogel | 33 | – | 10 | 7.5 × 10−4 | 50 | [56] |
LS-functionalized nGO/gelatin aerogel | 69 | 40 min. | 10 | 6 × 10−3 | 30 | This work |